Safety razor



NOV. 24, 1931. .L HOLTZMAN 1,833,079

SAFETY RAZOR Original Filed Nov. '7, 1925 Patented Nov. .24,1931

-PATENT oFFlcEf JOHN nonrzmN, or N'Ewvvonx, N. Y. i

SAFETY `RAZOR Original application led November 7, 1925, Serial No. 67,485. Divided and this application. led August 13, 1927. Serial 110.212,81?.

whereby the user is enabled vvto control the` closenessof theshave as may be desired withloin the limits of the adjustment. The vvarious objects of my invention willbe understood vfrom the description which follows and from the -drawings, in which,

Fig. 1 is a top plan view of my improved razor designed to reciprocate the blade during the shaving operation, some of the parts being broken away to yshow the underlying structure.

Fig. 2 is a vertical section of the same taken 20011 the line'19--19 -of Fig. 1.

Fig. 3 is a side view of' the same, and Fig. 4 is afront View of the lower blade -clasping plate. f Referring non1 251 have there shown an embodiment of my invention applied to a razor for the purpose of longitudinally; reciprocating a razor blade during the shaving operation.

The handle 100 is provided at its upper end' with a suitable chamber 101 communi on the outside of the. handle, said recess bef' ing formed by a pair of rings extending around and outwardly of the handle and preferably integral therewith. A suitable plate 104 preferably rectangular in outline is adjustably secured to the handle 100 as by means of the centrally arranged' bolt 105 screwed into the threaded opening 102 and urged toward its uppermost position by the coil spring 128, surrounding said bolt andv 5 interposed between 'said Vplate and the botto Figs. 1 to 4, inclusive,

tom of the chamber 101. For receiving the member 125 and allowing movement of said member longitudinally of and'relatively to the plate 104, a transverse slot 106 is made in the upper surface of said plate of sufficient depth to allow the razor blade to rest fiat against the remainder of 'said upper surface without interference with the member 125. The arms 107, preferably formed in pairs, extend outwardly and downwardlyy from the under surface of the plate 104,` and carry the swingable levers 108 suitably pivoted' thereto. Said levers 108 project fromY the bars 109 which are arrangedlongitw. dinally of the blade, and which have upstanding arms 110 at the endsv thereof in which are mounted the pivot screws 111. For providing a fulcrum about which the pair of oppositely disposed arms 112, extending from the bars 109, may be adjusted, I insert the rounded ends of said arms into the recess 103 of the handle. This arrangement allows distance of the blade 114 from theV guard axtwill be described in greater detail yhereina er.

The clamp plate 118 is arranged to rest upon the upper surface ofthe blade and is provided with a suitable longitudinal groove therein to receive the studs 113 projecting from and above the plate 104. The sides of the groove are provided-with tongues adapted to enter the recesses 116 of the studs 113, the clamping plate being-brought into operative position by a horizontal movement thereof. When the under face of said plate 118 is first brought into- Contactv with the upper surfacefof'the blade at one end, the

studs 113 enter the groove in said plate and the tongues in the sides of said glroove enter the recesses 116 of the studs 113, t e clam ing plate sliding readily intoposition guide by the studs. f

Slots as 115 are made in the razor blade,-

into whichslots the'studs 113'enter to align thereof. As illustrated, the screw threads are doubled and are arranged in pairs of op-v posite pitch on each roller.

The central portion 122 of the roller isy preferably left unthreaded but is provided with an inclined cam groove 123 into which the bent end 124 of the cross bar member 125 is inserted. Said bar 125 extends transversely across the razor from one roller to the other in the groove 106 and has an upstanding pin 126 arranged near the middle thereof and inserted into a suitable slot 127 in the razor blade.

During the shaving operation, the guard rollers 119 not only protect the cutting edges of the razor blade and prevent the user from cutting himself, but said rollers tend to stretch the skin slightly as they are moved over over the skin and thereby make the cutting action of the blade more effective. As the rollers are moved over the skin by the user, they are caused to rotate. The rotation thereof moves the end 124 of the cross bar member longitudinally of the razor, the other end of said cross bar member being held stationary in the cam groove of the opposite roller whereby said other end acts as a pivot or fulcrum for the member. |he pin 126 of the cross bar member is thereby swung 'about the temporarily fixed end and serves A,to reciprocate the razor blade by the action of said pin against the sides of the slot 127. rlhe consequent reciprocation of the razor blade gives the very desirable sliding action of the blade so effective in clean cutting. lt will be seen that I have provided effective means for reciprocating the razor blade during the shaving operations and that have further provided yieldable means eifectively securing the parts ofthe razor in adjusted position for various degrees of closeness in shaving. lt will be understood that while I have described various embodiments of my invention, ll do not intend to be limited to the particular structures shown and described since changes and modifications may readily be made therein without departing from the spirit and scope of my invention as deiined by the appended claims.

l claim:

1. A safety razor comprising a handle having an annular groove near one end, a plate having a rigid bolt engageable in said handle, means on said plate engaging the mentioned groove to rotate therein, spaced pairs of lugs on said plate, a frame pivoted to said lugs, a pair of rollers pivoted in said frame, said rollers being provided with screw threads in opposed directions, means on said plate to guide a razor blade, a clamp member disposed over the blade and means operatively connected to the rollers and adapted to engage the blade for reciprocating the blade.

' 2. A safety razor comprising a handle having an annular groove at one end, a plate having a rigid bolt engageable in said handle, means for pressing said plate outwardly, pairs of lugs extending outwardly and downwardly from said plate, a frame pivoted in said lugs, levers on said frame engageablc in the mentioned groove, rollers pivoted in the ends of said frame, cam grooves in said rollers, a flat razor blade having a transverse slot, a bar having its offset ends operatively engaged in said cam grooves, and a pin fixed in said bar to engage the slot in said razor blade.

3. A safety razor device, comprising a blade supporting and guiding plate, a handle associated with said supporting plate, a space formed in the middle portion of said plate, a pair of studs projecting from said plate, a razor blade having two cutting edges slidingly mounted on said plate, said studs arranged to position said blade centrally on said plate, and a mechanism for imparting reciprocatory longitudinal motion to the blade, said mechanism including a roller adapted to engage the face of the user and rotated thereby, a cam on said roller, a pivotally mounted bar located in the space formed in said plate, said bar arranged directly to engage the razor blade and operatively associated with the cam of the roller. i

4. A safety razor device comprising a blade supporting plate, a clamping plate to be scated on said blade, a rockingly mounted bar to reciprocate said blade, a space provided in said supporting plate at the middle portion thereof to permit the bar to be rocked in said space, a handle provided for said supporting plate in the center thereof,va pair of studs mounted on said plate to position a double edge razor blade, mechanism to reciprocate said blade in longitudinal direction, said mechanism comprising a roller having a cam, 'said cam arranged for operative engagement with the end of the bar for transmitting a reciprocatory motion to the blade during the operative engagement of the roller with the face of the user.

5. A safety razor device, the combination of a handle, a rectangular plate centrally mount/ed on said handle at a right angle thereto, a. pair of studs projecting upwardly from said plate, a razor blade having two cuttin edges and a pair of slots disposed in longitudinal center and an opening in the middle portion thereof, said studs adapted to enter said slots, a clamping plate mounted on said its distance relative to the first plate to permit the razor blade to be freely reciprocated between said plates by a manually7 operated mechanism, said mechainsm comprising' a roller having a cam and adapted to engage the Aface of the shaver and to be rotated thereby, a movablyrmounted bar in the device actuated by the cam ofsaid roller, said bar larranged' directly to engage the razor blade at the middle opening thereof for transmitting reciprocatory motion to said blade with either edge applied to the face by the user during the manual operation thereof.

6. AJ safety razor device, the combination of a handle, rectangular plate centrally mounted on said handle at right angle thereto, a pair of studs projecting' from said plate,

a razor blade having two cutting edges and a pair of slots'atthe ends andI anlopening in the center thereof, said studs adapted to enter the slots of said blade when the same is mounted on the plate, a rockingly mounted bar in the device` a space provided for said bar and arranged longitudinally of thelbar to permit the same to be rocked in said space, a clamping plate arranged to be seated yon ,said blade and a mechanism to reciprocate the blade, said mechanism comprising 4a, roller adapted to engage the face of the shaver and rotated'thereby, and a cam on said roller engaging ythe bar. 4

7. A safety razordevice ,comprising an upper plate and lower plate, means to position a'double edge razor blade intermediate said plates, a guard roll revolvably mounted inthe lower plate adjacent each edge thereof, each roll being externally threaded in right and left direction for stretching the skin of the shaver during -the operation of the device. v

8.' vA safety razor device having the combination of a guard plate, a razor blade positioned relative said plate, a revolvably mounted roll having a right and leftthread equally disposed from each end of said roll,

said roll arranged to be rotated during the shaving operation and adapted to stretch the skin of the shaver.

9. In a safety razor, the combination with a guard plate, of a blade mounted vin operative position on the guard plate, a roller mounted on the guard plate in associated relation-with the blade to guard its cutting edge and to reapply lather to the face of a user adjacent the bladecutting edge, said froller having a contacting surface interrupted by two individual uninterrupted spirals reversely directed from a -point intermediately 10. In a'l razor, a latherworking roller,

said roller having a contactingvsurface insitioned relative to rsaid plate, a revolvably` mounted roll having a right and left thread 'equally disposed from each end of said roll,

said roll mounted on the guard to be rotated l during the shaving operation and adaptedto stretch the skin of the'shaver.

12. -In -a razor, 'a guard plate having its side edges recessed to provide trunnion lugs,

a roller rotatable in each edge recess and hav-v ing trunnion bearing i the lugs, each said roller having a contact ng surface interrupted by two individual uninterrupted spirals reversely directed from/a point intermediate.- ly of its ends and the spirals o f each roller being directed oppositely to the spirals of the other roller. p f f 13. In a safety razor device, a blade clamping member means, including a guide projection, 1for lnovably holding a razor blade having a plurality of openings therein, a guard,

said projection being adapted topassthrough an opening in said blade for guiding said blade in its movement relatively to the guard, said guard and said member being arranged to swing relatively towards and away from each other, a movable pin adapted to pass through another opening formed in the blade for moving said blade relatively to the guard, while the blade is guided bythe guide projection, a handle for the razor, a coiled spring in the upper part of the handle, revolublethreaded means in the handle, and a movable element partly in the handle and partly beyond the handle and operatively ing member for swinging the guardv and the clamping member relatively to each other, said spring being compressed upon the rotaconnecting the' threaded means to the rguard and clamp tion of said threaded lmeansin one direction,

and being released upon the rotation of said means in the opposite direction, nsaid' spring normally exerting pressure on said threadedmeans to resist movement thereof.

14. In a safety razor provided with guard and clamping members, a blade having a plurality of spaced openings therein, means for moving the guard member and the blade relatively to each other, including a projection outstanding from one of said members and entering anopening in the blade and thereby guiding the'hlade, means for supporting saidl members for relative swinging movement,

and means for relatively swinging said members toward ,and from each other to cause the projection to engage the blade and to adjust the position of the blade relatively to t he guard member.'

' 15,' In a safety razor device, a blade clamp# ing Imember, a' guard member, a razor blade,

between said members and having interposed openings therein, a projection upstanding above said guard member and passing through an opening of the blade for guiding said blade in its movement relative to the guard member, said guard member and said clamping member being arranged to swing relatively to each other, a handle for the razor, revolubly threaded means associated with said handle for effecting the relative swinging movement of said members, a spring located inthe upper part of the handle for exerting frictional pressure upon said threaded means to prevent accidental rotation thereof and a movable element disposed between the ends of the guard member adja- `cent the upper part of the handle and being in frictional engagement with said revolubly threaded means for swinging one of said i members relatively to the other.

16. In a safety razor, a blade actuating -member adapted to positiona razor blade having an opening therein, a guard member pivotally associated with said actuating member, a blade engaging projection carried by the actuating member and adapted to pass through an opening of said blade for moving the blade relatively to said guard member, a handle for the razor, a spring located in the upper part of said handle, revolubly threaded means associated with the handle for swinging the guard member and the actuating member relatively to each other, said revolubly threaded means When rotated in one direction arranged to compress the spring and simultaneously to swing the members relatively to each other and when rotated in opposite direction, releasing the pressure on said spring, said spring being adapted to exert frietional pressure on said threaded means and to prevent accidental rotation thereof, and a movable connecting element engaging the upper part of the handle, adapted tobemoved on the rotation of the threaded means and operatively connected to one of said members and to said revoluble me ans.

JOHN HOLTZMAN. 

